喜泰顺曰∶痘疮顺证，点粒稀疏，根窠红活，至八九日来，浆行满足，色渐蜡
黄，根晕尽化，从人中上下，靥至两腿，此正收正靥。若遇险证，及五六日气来化血
成浆，头面必肿，眼鼻封塞如蒸笼透物，气不走泄而酵发也。八九日来，必串成一块，
皮薄易破，脓血齐流，急以松花粉搓之，内用清凉攻毒之剂。至十朝前后，必溃烂变
臭，虽为恶候，尚属可治。只要声音响亮，饮食如常，臭而不恶，外靥之盖，如鸡粪
堆，此外靥之正候也。如脓浆溃烂，湿流不干，臭如尸恶，饮食不进，此为烂痘。声
音短促，或失声或音哑，眼开肿消，不特无盖，形如剥兔，此外靥之死候也。大抵
抓破之时，有脓血淋漓者，为外靥之候，庶几可治；纯是清水，不流脓血，不能结痂者，实为难治。
纸捻照法∶用纸捻饱蘸麻油，即用烘干，临时欲用，再蘸其油于灯上，往来略
炙，令油无泡方点照之，则免热油爆伤皮肉。其照时须将门窗尽闭，至令黑暗，欲
视其左，火移于右，欲视其右火移于左，上下同此法照之，则痘之多少，色之如何预
知矣。麻疹则浮于皮外而肉内无根，痘疮则肉内有根而极深者也。故有以手摸之者，
亦以其痘有根核而验之耳；若以目光观之，则不见矣。故不若火之为可预知也。凡以
火照而儿惊搐大叫者，亦痘候也。因心火太盛而与外火相搏耳，治宜微利以导心火，否则惊搐踵作矣。
论服药法并禁解毒寒凉∶小儿多不肯服药，强之亦不能多进。然病势猖獗，非
药力不能驱逐，痘属虚寒者，尚可延绵数日；属实热者，火性急速，药不可缓。故
惟宜重剂脓煎，上用头服则药力方能胜病，至于乳母亦宜服大剂，使乳汁亦有药力。但
解毒寒凉之药不可。痘初轻服，盖痘本于胎元，伏于肾脏，感触而出，毒莫可御也，
非若诸疮之出，初发可以解毒内消而愈，已成可用解毒逐散而愈。盖脏毒属阴而最深，
必藉气血送出于皮肤，运化于窠囊，收结成痂还元而后已，宁有内消者乎！宁有不
成脓者乎！故诸疮可以解毒为主，而痘疮必赖气血以送毒为主也。况解毒之药，多
伤胃气，多损气血，且毒有不必解者，有不可解者。如禀赋强旺，气血充足，胃强
能食，自能运毒以成功，此不必解毒者也。如禀赋怯弱，气血衰微，胃虚少食，则虽
调补气血，尚虞不能送毒成功，此不可解毒者也。至于解毒之方，若投之于将出之
际，则寒凉抑遏毒滞于中，非徒无益而反害之；惟结痂之后，有余不尽之毒，假药
力以解散之，免其流滞为痈，则可耳。
喜泰顺说：痘疮的顺证，表现为痘粒稀疏，根部红润鲜活。到了第八九天，浆液充盈饱满，颜色逐渐变为蜡黄色，根部的红晕完全消退，痘痂从人中穴上下开始，一直延伸到双腿，这是正常的收靥过程。如果遇到险证，在第五六天气机来化血成浆时，头面部必然肿胀，眼睛和鼻子被堵塞，就像蒸笼里透出的热气一样，气息无法发散而发酵鼓胀。到了第八九天，痘疹必定连成一片，皮肤变薄容易破裂，脓血同时流出，此时急需用松花粉搓揉患处，内服清凉攻毒的药物。到了第十天左右前后，痘疮必定溃烂发臭，虽然属于恶候，但仍然可以治疗。只要患者声音响亮，饮食如常，臭味但不令人厌恶，外靥的结痂像鸡粪堆一样，这是外靥的正候。如果脓浆溃烂，湿水流淌不干，气味像尸体一样恶臭，饮食不进，这叫做“烂痘”。声音短促，或者失声、音哑，眼睛虽然消肿但睁开困难，不仅没有结痂，形状像剥了皮的兔子，这是外靥的死候。大抵抓破之时，如果有脓血淋漓的，是外靥的可治之候；如果是纯清水，不流脓血，不能结痂的，实在难以治疗。
纸捻照法：用纸捻饱蘸麻油，先将其烘干，临时要用时，再蘸取麻油在灯上，来回略微烘烤，直到油中没有气泡才用来点照，这样可以避免热油爆裂烫伤皮肉。点照时必须将门窗全部关闭，使室内黑暗，想要看左边，火源移到右边；想要看右边，火源移到左边，上下同样以此法点照，那么痘疮的多少、颜色的好坏就可以预先知道了。麻疹浮于皮外，肌肉内部没有根基；痘疮则在肌肉内部有根基，而且极深。所以有人用手触摸来诊断，也是依据痘疮有根核来验证的；如果用目光观察，就看不见了。所以不如用火照的方法可以预先知晓。凡是用火照时，孩子出现惊厥抽搐、大声叫喊的，也是痘候的表现。这是因为心火太盛与外火相互搏结所致，治疗应当轻微通利以引导心火下行，否则惊厥抽搐会接连发生。
论服药方法及禁忌解毒寒凉药物：小儿大多不肯服药，强行喂药也不能多吃。然而病势猖獗，非药物力量不能驱逐，痘疮属于虚寒证的，还可以拖延数日；属于实热证的，火性急速，用药不可迟缓。所以只宜用重剂量的煎药，让患儿服用第一碗（头服），这样药力才能战胜疾病，至于乳母也应当服用大剂量药物，使乳汁中也含有药力。但是解毒寒凉的药物不可使用。痘疮初起较轻时服用，是因为痘疮本源于胎元，潜伏在肾脏，感触邪气后发出，毒气无法抵御，不像其他疮疡初发时可以解毒内消而痊愈，已经形成后可以用解毒逐散而痊愈。因为脏毒属于阴邪且位置最深，必须依靠气血将其送出到皮肤，运化在窠囊中，收口结成痂皮恢复元气后才算结束，哪里有内消的道理呢！哪里有不成脓的道理呢！所以其他疮疡可以以解毒为主，而痘疮必须依赖气血来送毒为主。况且解毒的药物，大多损伤胃气，多损耗气血，而且毒气有不必解的，有不可解的。如禀赋强旺，气血充足，胃气强健能进食，自然能运化毒气取得成功，这是不必解毒的情况。如禀赋怯弱，气血衰微，胃虚少食，那么即使调理补益气血，还担心不能送毒成功，这是不可解毒的情况。至于解毒的方剂，如果投用在痘疮将要发出的时候，那么寒凉药物会抑制遏阻毒气停滞在中焦，不仅无益反而有害；只有在结痂之后，还有残余未尽的毒气，借助药力来解散它，避免其流滞成为痈肿，才可以这样做。
Xi Taishun said: In the favorable presentation of smallpox (Dou Chuang), the lesions are sparse, with red and vibrant roots. By the eighth or ninth day, the pustules are full of fluid, the color gradually turns waxy yellow, the erythema around the base completely dissipates, and the crusts form starting from above and below the philtrum (Renzhong) down to both legs; this is the normal process of crusting (Shou Ye). If encountering a critical presentation, when Qi transforms blood into pus around the fifth or sixth day, the head and face will inevitably swell, and the eyes and nose will be blocked as if steam were escaping from a steamer, causing Qi to stagnate and ferment. By the eighth or ninth day, the lesions will likely merge into a single mass, the skin becomes thin and prone to rupture, with pus and blood flowing simultaneously. At this point, one must urgently apply pine pollen powder by rubbing it on the affected area and internally administer cooling and detoxifying formulas. Around the tenth day, the lesions will inevitably ulcerate and emit a foul odor. Although this is an ominous sign, it remains treatable. As long as the voice is resonant, appetite is normal, and the odor is foul but not repulsive, with the external crusts resembling chicken manure piles, this is the standard prognosis for external crusting. However, if pus and fluids ulcerate and flow continuously without drying, emitting a stench like a corpse, accompanied by loss of appetite, this is termed "rotten smallpox" (Lan Dou). If the voice is short or absent, or hoarse, and although eye swelling subsides, the eyes remain difficult to open, lacking crusts and resembling a skinned rabbit, this is a fatal prognosis for external crusting. Generally, if scratching causes dripping pus and blood, it indicates a treatable stage of external crusting; if only clear fluid flows without pus or blood, preventing scab formation, it is truly difficult to treat.
Method of illumination with paper wicks: Soak a paper wick thoroughly in sesame oil, then dry it. When needed, dip it again in sesame oil and hold it over a lamp, moving it back and forth to slightly heat it until no bubbles appear in the oil before using it for illumination. This prevents hot oil from bursting and injuring the skin and flesh. During illumination, all doors and windows must be closed to create darkness. To view the left side, move the light source to the right; to view the right side, move the light source to the left. Apply this method up and down to illuminate. Then, the number and color of the lesions can be predicted in advance. Measles (Ma Zhen) floats on the surface of the skin without roots in the flesh, whereas smallpox has deep roots within the flesh. Therefore, some diagnose by palpation, verifying based on the presence of root nodules in the lesions; visual inspection alone cannot reveal them. Thus, illumination is superior for prediction. If a child experiences convulsions and loud crying upon illumination, this is also a sign of smallpox. It occurs because Heart Fire is excessive and clashes with the external fire. Treatment should involve mild purgation to guide Heart Fire downward; otherwise, convulsions will follow sequentially.
On medication methods and contraindications for detoxifying and cold-natured herbs: Children often refuse medicine, and even forced administration yields little intake. However, given the rampant disease progression, only medicinal force can expel the pathogen. For smallpox presenting as deficiency-cold, the course may linger for several days; for excess-heat presentations, the nature of fire is rapid, so medication must not be delayed. Therefore, heavy decoctions are appropriate, administered as the first dose (Tou Fu) to ensure the medicinal strength overcomes the disease. The nursing mother should also take large doses so that her milk contains medicinal properties. However, detoxifying and cold-natured herbs must not be used. Early in the onset, when the condition seems mild, this is because smallpox originates from the prenatal essence, lies dormant in the Kidneys, and emerges upon contact with pathogens; its toxicity cannot be easily resisted. Unlike other sores where early eruption can be resolved internally through detoxification, or later stages cured by dispersing toxins, visceral toxins belong to Yin and are deepest. They must rely on Qi and Blood to transport the toxin to the skin, transform it within the follicular sacs, and finally form scabs to restore Yuan Qi. How could there be internal resolution? How could there be no suppuration? Thus, while other sores prioritize detoxification, smallpox relies primarily on Qi and Blood to send out the toxin. Moreover, detoxifying herbs often damage Stomach Qi and deplete Qi and Blood. Furthermore, toxins have those that need not be resolved and those that cannot be resolved. If constitution is strong, Qi and Blood are sufficient, and Stomach function is robust allowing normal eating, the body naturally transports the toxin to success; this is a case where detoxification is unnecessary. If constitution is weak, Qi and Blood are depleted, and Stomach deficiency leads to poor appetite, even tonifying Qi and Blood may fail to transport the toxin successfully; this is a case where detoxification is inadvisable. Regarding detoxifying formulas, if administered during the pre-eruption phase, cold-natured herbs will suppress and stagnate the toxin in the middle Jiao, doing more harm than good. Only after scabbing forms, if residual toxins remain, can they be dispersed via medicinal force to prevent stagnation and abscess formation.